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Do happens when you need more or faster DNA synthesis? all DNAs have ends? What happens to them? When What need primer for DNA synthesis. A lot of DNA
synthesis is called replication, a small amount may be
called repair, if it is to due with damage or gap fill with
a small piece. In the model, there is no primer, we
have to add a primer. We need a primer because
DNA polymerases can only extend from a primer. if
we use RNA as a primer, then the genome is going to
fill with RNA- PROBLEM??? we need to remove that
RNA and replace it with DNA- this is part of the model
as well DNA replicates what happens to the chromosome?
(think, what is a chromosome?)
signals the cell to replicate the DNA? 5 BIO 1140 Unit 2-1:Replication activity of of a complex of
proteins
Enzymes of DNA Replication Helicase: unwinds the DNA double stranded Primase: synthesizes RNA primer (starting point for nucleotide
assembly by DNA polymerases) we need different types of DNA synthesis in order to
double the DNA. Different types of DNA are carried
out by different DNA polymerases, which have
different genes that code for them. This is especially
true at the end. In some case one polymerase can
carry out more than one function-not the case in
humans though, b/c we have multiple ones because
of specialization and location. A prokaryote cell can
divide faster than it can replicate its DNA. The ends
get lost in this model, it cannot be replicated. There is
a special way to replicate the ends in our
chro...
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